Code review comment for lp:~vanvugt/qtmir/fix-buffers_ready_for_compositor

+ const void* const user_id = (void*)123;
We use camelCase instead of _ separators, please use "userId"

Need you to also add the relevant section of https://wiki.ubuntu.com/Process/Merges/Checklists/QtMir to the description or in a comment.

Looks good otherwise.